Bluey, the oldest dog ever reliably recorded, lived to be 29 years and 5 months old and prompted studies on the breed, which found they live longer than other breeds of similar size, but their average lifespan is still around 13.4 years.
Butch, a beagle from Virginia, held the title from the Guinness Book of World Records for the dog that had lived the longest and was still alive while he officially held the title, with an age of just over 28 years at the time of his death.
Taffy, a Welsh Collie from the UK, was mentioned in the Guinness Book of World Records in 1998 as one of the longest-living dogs still around, reaching 27 years and 211 days.
Fourth on the list is Snookie, a South African pug who lived to be 27 years and 284 days old, which is remarkable since the pug breed only averages a lifespan of 13 to 14 years, and was even listed in the Guinness Book of World Records.
Adjutant, a Labrador Retriever, lived for 27 years and 98 days, which is impressive since their average lifespan is 10 to 12 years.
Buksi, the oldest dog in Hungary, lived from 1990 until 2017, died at the age of 27, and was studied by ELTE University due to his long life.
Pusuke, a Shiba Inu mix from Japan, lived from April 1985 until December 2011, was once considered the oldest living dog by the Guinness Book of World Records, and had a lifetime of 26 years and 248 days.
Bramble, a Border Collie from the UK, lived to be 25 years and 89 days and was known for being a vegetarian who ate only once a day.